Car-truck.



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CAR TRUCK.

(Application led. July 21, 1898..)

3 Sheets-Sheet I.

(No Mnde'l.)

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INI/EN 70H i WITNESS No. 665,359. Ptented lan. I, |90I. W. S. ADAMS.

CAR TRUCK.

(Application med Juxy 21', 189s.)

3 sheets-Sheet z.

(No Model.)

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/1 TTBNEY.

w. S. ADAMS.

GAB TRUCK.

(Application led July 21, 1898.)

No. 665,359. Patented Jan. I, 190|.

3 Sheets-Sheet 3.

A fro/mer UNITED STA-*res PATENT CFF-FICE.

JOHN A. BRILL,

OF SAME PLACE.

lCAR-rauen SPECIFICATIN forming part of Letters. Patent No. 665,359,dated .January 1, 190i.

Appnnuon nea my 21, 189s.

stanno. esente. No modela Be it known that l, WALTER S. ADAMAS. citiflI. zen of thevUnited States, residing in'the city and'county ofPhiladelphia, State of Pennsylvania, have invented certain new anduseful Improvei'nentsin Car-Trucks, of which the'following is aspecification.l

My invention relates to car-trucks generallyr/and `more particularly tothe class of electricallypropelled car-trucks known as .inaxim'umtraction, or those which generlly .have large driving-wheelsthat carrythe main weight of the motor and the superposed car body and `smallertrailing or guiding wheels. 'In this class of trucks, owing, among otherthings, to the pivotalpoint being eccentric tothe truck-center andadjacent the driving-wheels, there is danger that the small wheels willjump the track, particularly when Y thesni'all wheel is traveling aheadof the large driving-wheels; and the main object of my and this featureis important, because the` invention is to provide means for keeping thesmall wheels down upon the track, and particularly so while'the truck ispassing around curves. In carrying out this portion of my invention inits preferred form I provide a car-truck having .large and small wheelsand a car-body which may have a bolster or beam extending transverselythereof and having at its under side a recess thatv inclines from acentral point outwardly in opposite direc-- tions, and in this recess aspring-acting rod or plunger fits land connects with the cartruck at apoint preferably between the two pairs of wheels and at the longitudinalcenter of the truck, forming an end bearing, whereby as :the end ofthetruck tends to rise the rod or plunger and the spring`will act' toresist such tendency. By having the inclined recess the arrangement issuch that when the ,car-is turning a' curve the spring-acting rod 0rplunger will act with increased force upon that part of the truck tohold it down firmly,

is greater` while the truck is rounding acurve than at other times. e y

The invention also consists in the novel det'ails ofimprovement and theeombi'nations 5' of parts, that will be more fully hereinafter set forthand then pointed out in the claims. y

Reference isto be hadto the accompanying' drawings, forming part'hereof, wherein- K Figure 1 is a partly.broke n side elevation of acar-truck embodying my invention. Fig. "2 is a plan view thereof. Fig'.3 is a cross- Fig. 4 is a vertical section on the plane of the line 44in Fig. 3. Fig. 5 is a sectional detail about on the same plane asFiglt. Fig. 6 is a sectional elevation on line as, Fig. 1;' and Fig. 7is a perspective of the body-end rubplate.

responding parts in the several views.

ln the accompanying drawings, l indicates the main driving-wheels, and 2the smaller fto the usual practiee in the maximum-'trac- 'Etion trucks.At 3 are the axle-boxes for the axles 4, which are guided in yokes 5 6of the ;truck-framti,7 being side bars that connect 2 the yokes, and atl8 are springsinterposed between the axle-boxes 3 and the tops of thelyokes 5 6.,. At 9 isa cross-bar at the outer @or forward end of thetruck, which'connects lvwith the armslG, that project from theaxlef-thesidel'bars? at a pointbetween the wheels 1 2. (See Fig. 2.) Thecross-bar l1 is shown las turned on edge and having its outer endsagainst thesame and secured thereto by bolts i 12. The parts l abovedescribed may, howi ever, be of any usual or suitable construction.

permit theaxle-.boxes 3 to be inserted, and at fthe lower ends of theyokes is a retaining-bar -tially in U form, andl these upturned ends155i@l are securedy to the vertical bars of the yokes, for which purposethe lower ends of the yokes on the outer sides have depressions :toreceive the ends of retainer l3,.which may lbe secured in position bybolts or. screws or zotherwise. This retainer 13 braces the lower endsof the yokes and keeps the axlesfboxes affording a simple and cheapconstruction and one which enables the parts to be readily adjusted.. YJ

At 14 is-a car-body, which is shown resili- The yokes 5 6 are open atthe bottom toA properly within thel yoke, at the same time section onthe yplane of the line 3 8 in Fig. 1.

Similar numeralsof reference indicate cortrailing wheels, arranged in amanner similar i box yokes5, and at 11 is a cross-bar connecting'.

11a bent parallel to the side'bars 7 and placed f 13, having upturnedends 13, being substaif IOO ' adapted to bear against the plate 15a.

' through, \6o

the platform ently supported upon the truck by means of .1n pivotalrelationship to the truck in the manner recited. p is arestraining-plate secu red to the sill16 of the car and having adepending segmental web 15 on the outer side, and 17 is a yoke carryinga rotatable friction-roller 17",

Between the plate 15 and the yoke are frictionplates 15b 15C, secured,respectively, to the yoke and plate. From the yoke depend posts 18, thatpass through apertures in an arm 19, projecting from the yoke 5,parallel with and directlyover shoulders 18, that rest on plates 20,that are supported upon springs 21, which surround said posts, saidsprings resting in plates 22 on the side bars 7, and said side bars haveapertures 23, through which the posts 18 pass, pins 24 on `said postsserving to prevent displacement of the posts. The means for resilientlysupporting the car-body upon the truck and those employed to secure apivotal support of the car may be altered, if desired. As the car-bod yis supported upon said bearings I, pro-vide a draw-bar for connectingthe truck with the car-body for the purposes of drawing the car.

At 25 is a draw-bar, shown in the form ofa post, depending from thecar-body and which may be secured thereto at its upper end in anysuitable manner, but by preference as shown herein. The draw-bar 25passes through anaperture .in a plate 26, that is secured to knee 27, sothat the greatest strain is transmitted rectly to the platform-kneethrough the plate 26. This plate also braces the draw-bar in everydirection, so thatv when the car is rounding curves or proceedingstraight ahead the strain on the draw-bar will be evenly transmitted ytothe platform-knee.

The connection I have shown of the drawbar with the car-truck is asfollows: At 28 is a casting secured to the cross-bar 9 and having agroove in the arc of a circle described around the pivotal center of thetruck and provided in thebottom with aslot 29, through which recess thedraw-barA 25 passes. (See Fig. 1.) Within the recess 28a of casting 28is placed a sliding blockl 30, (see Fig. 2,) having an aperture throughwhich the drawbar 25 passes, and on the top of the casting 28 is placeda plate 3l, having-.a groove corresponding to the groove 29, which plate.may be held in position by bolts 32, whereby the block 30 is confinedwithin the recess of casting 28 and is adapted to travel therethe sideor bearing faces of said block being curved to correspond to the curves'A .of the bearing-walls of the casting 28. Thus the draft istransmitted from the draw-bar 25 to the block 30 and casting 28 andthence to the bar 9 and the truck-frame. Itis evident, however, that asto other features of my invention any other suitable means than thatshown' may be provided for connecting the side bar 7, the rods 18 havingfrom said draw-bar di.

` spring-acting cured therein in any suitable manner, and at' thecentral line of the car-body the beam 36 has a recess or depression 37,that inclines outwardly and downwardly in opposite directions from acentral point 38, somewhat in V form, as shown in Fig. 3, and from lthepoints 39 where the recess 37 ends the under surface of the beam ispreferably inclined upwardly and outwardly toward its'ends at 40. At 41is a wear or rub plate that fits the bottom of the beam 36 and has acentral bent portion 42, that corresponds to the depression or, recess37 in the beam 36, the plate 41 acting as a friction or wear plate. Onthe truck is a rod or plunger'43, shown provided with a head 44, theupper surface of which head is inclined from a central point outwardlyin opposite directions at to correspond to the rinclines 42 of therecess 37 in beam 36. (See Fig. 3.) The head 44 is shown guided in anaperture 46' in a yoke or casting 46, that is secured to and extendsupwardly from'the cross-bar 11, and said rod at its lower end is guidedin an aperture 46h in the base of the yoke or casting 46l The rod Aorplunger 43 is shownfprovide'd with a reduced portion just below the.head 44, which isscrew-threaded at 47 to receive the threaded vaperturein a cap-piece or plate 48, that rests upon a spring 49, which is coiledaround the rod or plunger 43 and rests at its lower end in a pocket orseat 5 0 at the bottom of the yoke or casting 46, fitting around theapertured lug 50 4T'he yoke or casting 46 is shown as provided withaplate or web 51, that rests against one side of the cross-har 11 andmay be bolted thereto,'and with lips 52, that rest upon the upper edgeof the crossbar 11. (See Figs. ends of the plate 51 of the yoke 46 areover- IOO IIO

4 and 5.) Near the outerl hanging lips 53, that form recessesto receivethe upper edge of the cross-bar 11, whereby the same is'held in properposition upon the cross-bar and kept from tilting thereon. At 54 arewebsnear the ends of the casting, that extend outwardly and serve tostrengthen the structureat the base-plate 5l. A l 'lhe arrangement issuch that when the parts are in their proper plunger 43 will be held-against the wearplate /41 of the beam 36, compressing the springs 49 tothe' required amount,^aud if the small wheels 2 tend to rise from thetrack the plunger by finding an abutcar-body will .tend to hold the uponthe track. J When the car ment at. the wheels down vice versa,-andespecially when the small wheels are running ahead ot' the large wheels,

. the position of the spring-acting plunger relativelyto the centralline ofthe car will change, during which time the head 44 will passunder the incline of the recess 37 in the beam 36, thereby putt-ing thespring 49 uu'der more or less tension, and the greater the tension thusproduced' on the s'prin'g by the downward movement of the rod or plunger43 the greater will be the tendency to hold the small wheels 2 down uponthe'track. N

I do not limit my invention to the precise details of construction shownand described, as they may be varied without depart-ing from the spiritthereof. y

Having now described my invention, what I claim isl. The combination ofa car-truck, and a car-body pivotally mounted thereon; a bolster or beamon the car havingarecess on its under surface that inclines from acentral point outwardly in opposite directions, and with a spring-actingrod orplu nger connected with the car-truck and having a double-beveledsolid head fitting in said recess, substantially as described.

2. The combination of a car-truck, with a car-body pivotally mountedthereon; a bolster or beam 'extendingA transversely thereof and providedon its under surfacewith a recess that inclines from a central pointoutwardly in opposite directions, a yoke secured to a cross-bai' of thetruck, a plunger guided by said yoke and having a double-beveled solidhead resting in said recess, and a spring acting on said plunger to keepthe head of the same within said recess, substantially as described. i

3. The combination of a car-truck, with a car-body having a bolsterextending transversely thereof and provided on its under surface with arecess that'inclines'from acentral point outwardly in oppositedirections, a

yoke or casting secured to a cross-bar of the truck, said yoke having anaperture lat its' upper endk and aI pocket at its lower end, a plungerhaving ahead guided in said aperture and also guided in an apertureat'the lower end of said yokeor casting, a spring located in saidpocket, and a cap or plate con-` nected with said plunger'andacting uponsaidspring, substantially as described.

4. The combination of a car-truck, with a.

car-body having a bolster'extending trans- Versely thereof and providedon its `under surface with a recess that inclines from a cenend portionguided in the lower aperture, a.

spring surrounding said plunger and said post and resting in saidpocket, and a cap or plate adj ustably' carried by said plunger andrestu ing on said sp ring,substantially as described. 5. The combinationof a car-truck having large and small wheels, with a car-body pivotallymounted thereon, said car having a bolster extending transverselythereof and provided on its under surface with a recess' that inclinesfrom a central point outwardly in opposite directions, and with aspring-act-v ing rod or plunger connected with the cartruck and having asolid head, the upper surface of which is inclined outwardly in oppositedirections from a cent-ral point to" correspond with the inclines ofsaid recess `and guides for said plunger mounted upon vthe truck,substantially as described. e

6. The combination of a car-trii'ck,'l with -a car-body having abolsterl or'vbeam extending transversely thereof and provided onitsiin'- der surface with a recess that inclines from" a central. pointoutwardly in opposite directionsf'a plate having a bent portion tocorrespond`with and tit within said recess, andl a spring-actingvplunger connected with the truck and vhaving its head normally restingagainst said plate, substantiallyas described.

7. The combination of'a car-truck, with a car-body `having` a, bolsterprovided with a channel opening downward, a beam located in said'channel and provided on its under surface with a recess that inclinesfrom a central point outwardly in opposite directions, awear-plate having a depression that corresponds with and fits withinsaid recess, and with a spring-acting plunger connected with thecar-truck and having its end located in said recessand bearing againstsaid wearplate, substantially as described.

8. The combination of a car-truck, with a car-body having a bolsterextending transversely thereof and provided on its under surface with arecess that inclines from a central point outwardly in oppositedirections, and with a yoke or casting having alinedapertures, said'yoke'or casting having a plate to rest against a cross-bar of .thetruck-frame and overhanging lips to rest upon said cross-v bar, aplunger fitting in the apertures of said yoke orvcasting andahavingasolid-head bear- ICO' ing against said bolster or beam, and a springinterposed between the plu nger and the yoke or casting to resist thedownward movement of the car-body, substantially as described.

9. The car-body having a cross-bolster, hav- -ing a plate secured in acorrespondinglyformed recess in the bolster, said plate having theoutwardly-extending fiat horizontal sections 4l adordinguninterruptedbeaing'- surfaces 4land intermediate and upwardlyconvergingportions .42, substantially as described. 'I z 10. A car-truck,provided=with a.. bearingsupport'cotnprising a yoke havirrg"the seat 50,the guide 46 on the yoke, a block 44 movablein .the guide, a spring onsaid seat, a cap .on the .spring connected with s'aidf block combinedwith'a car pivoted to the truck and hav- IZO 11. A car-truck, providedwith a Bearingsupport comprising a yoke having the seat 50,upwardly-extending apertured lug 50a,

and guide 46, a block movable in the guide,

a spring on the seat around the lug, a rod extending from' the blocktoand into the aperture in the lug, a cap on the spring secured to saidrod, combined with the car pivoted to the truck and having a bearingengaging said block, substantially as described.

12. The combination in a car-truck having a cross-bar of the yoke 46secured to the crossbar, said yoke having the guide 4(5, of the block 44movable in the guide, said block having a top comprising twoupwardly-converging bearing-surfaces, and a spring on said yoke toresist downward movement of the block, substantially as described.

13. The combination with theyoke having the seat 50, the' guide 46a onthe yoke, abloek 44 movable in the guide, a spring on the seat and a capon the spring dei achably connected.

vengaging the rod and resting on the spring,

substantially as described.

Signed in the city and county of Philadelphia, State of Pennsylvania,this 1st day of July, 1898.

WALTER S. ADAMS. Witnesses:

WM.. JAooBsEN, S. B. KUHN.

